dualfroz
8e8500f7ac
A terminal position with no legal moves and no check was always shown as stalemate, so atomic explosions, antichess, king of the hill, racing kings and horde wins got the stalemate glyph. Use the chessops outcome of the position instead, and don't treat a crazyhouse check that can be blocked by a drop as mate.
112 lines
3.3 KiB
TypeScript
112 lines
3.3 KiB
TypeScript
import assert from 'node:assert/strict';
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import { describe, test } from 'node:test';
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import { endgameShapesForNode } from '../src/game/endgame';
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import { endgameGlyphs } from '../src/game/glyphs';
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import type { StatusName } from '../src/game/status';
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import { completeNode } from '../src/tree/node';
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const glyphName = (html: string | undefined) =>
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Object.entries(endgameGlyphs).find(([, glyph]) => glyph(0) === html)?.[0];
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type GameEnd = { isLast?: boolean; winner?: Color; status?: StatusName };
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const kingGlyphs = (
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variant: VariantKey,
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fen: FEN,
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{ isLast = false, winner, status = 'started' }: GameEnd = {},
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) => {
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const node = completeNode(variant)({ ply: 1, fen });
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return Object.fromEntries(
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endgameShapesForNode(node, isLast, winner, status).map(shape => [
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shape.orig,
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glyphName(shape.customSvg?.html),
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]),
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);
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};
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describe('endgame glyphs on terminal positions', () => {
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test('standard checkmate', () =>
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assert.deepEqual(kingGlyphs('standard', 'R5k1/5ppp/8/8/8/8/8/6K1 b - - 1 1'), {
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g1: 'win',
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g8: 'mate',
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}));
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test('standard stalemate', () =>
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assert.deepEqual(kingGlyphs('standard', '7k/5Q2/6K1/8/8/8/8/8 b - - 0 1'), {
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g6: 'stalemate',
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h8: 'stalemate',
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}));
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test('atomic king explosion', () =>
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assert.deepEqual(kingGlyphs('atomic', 'rn2k2r/ppp3pp/8/3ppp2/3P2P1/5P1B/PP5P/RNB4R w kq - 0 12'), {
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e8: 'win',
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}));
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test('atomic checkmate', () =>
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assert.deepEqual(kingGlyphs('atomic', 'R5k1/5ppp/8/8/8/8/8/6K1 b - - 1 1'), {
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g1: 'win',
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g8: 'mate',
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}));
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test('antichess win by losing all pieces', () =>
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assert.deepEqual(kingGlyphs('antichess', '8/8/8/8/8/8/8/k7 w - - 0 1'), {
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a1: 'unknown',
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}));
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test('antichess win by being stalemated', () =>
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assert.deepEqual(kingGlyphs('antichess', '8/8/8/p7/P7/8/8/7k w - - 0 1'), {
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h1: 'unknown',
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}));
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test('king of the hill', () =>
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assert.deepEqual(kingGlyphs('kingOfTheHill', '8/8/8/8/4K3/8/8/k7 b - - 0 1'), {
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e4: 'win',
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a1: 'unknown',
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}));
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test('racing kings win', () =>
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assert.deepEqual(kingGlyphs('racingKings', 'K7/8/8/8/8/8/k7/8 b - - 0 1'), {
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a8: 'win',
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a2: 'unknown',
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}));
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test('racing kings draw', () =>
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assert.deepEqual(kingGlyphs('racingKings', 'K6k/8/8/8/8/8/8/8 w - - 0 1'), {
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a8: 'draw',
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h8: 'draw',
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}));
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test('three-check', () =>
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assert.deepEqual(
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kingGlyphs('threeCheck', 'rnb1kbnr/pppp1ppp/8/4p3/4P2q/5P2/PPPP2PP/RNBQKBNR w KQkq - 3+0 0 1'),
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{ e8: 'win', e1: 'unknown' },
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));
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test('horde', () =>
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assert.deepEqual(kingGlyphs('horde', 'k7/8/8/8/8/8/8/8 w - - 0 1'), {
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a8: 'win',
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}));
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});
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describe('endgame glyphs on non-terminal positions', () => {
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test('crazyhouse check that can be blocked by a drop', () =>
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assert.deepEqual(kingGlyphs('crazyhouse', 'R5k1/5ppp/8/8/8/8/8/6K1[n] b - - 1 1'), {}));
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test('last move of a resigned game', () =>
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assert.deepEqual(
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kingGlyphs('standard', 'rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1', {
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isLast: true,
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winner: 'black',
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status: 'resign',
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}),
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{ e8: 'win', e1: 'resign' },
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));
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test('mid-game position', () =>
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assert.deepEqual(
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kingGlyphs('standard', 'rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1'),
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{},
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));
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});
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